• Roy Kokkelkoren
  • Security Consultant
  • Contact:
  • Adres: Witbreuksweg 401-404, 7522 ZA, Enschede
  • Telefoon: +31 (0)6 126 77 218
  • E-mail: r.kokkelkoren [at] xsec.nl

Over Xsec

As Xsec I provide IT related services to a wide range of customers. The services provided range from security related assessment to IT consultancy. In addition, I provide Pro Bono services to startups, no profit organizations and open source projects.

Over mij

As Xsec I provide IT related services to a wide range of customers. The services provided range from security related assessment to IT consultancy. In addition, I provide Pro Bono services to startups, no profit organizations and open source projects.

Ervaring

Opleiding

  • 2015-2016

    University of Twente

    Master’s Degree, Science Education & Communication

    The Science Education & Communication program enables me to teach in all phases of secondary education. As a teacher I will be a vital link between science, technology and society.

  • 2014-2016

    University of Twente

    Master’s Degree, Computer Science

    Following the kerckhoffs-institute programme. This joint programme between the University of Twente, the Eindhoven University of Technology and the Radboud University. This programme is 2-year master track in computer security

  • 2007-2012

    Hogeschool van Amsterdam

    Bachelor’s Degree, Technische Informatica

    Minor network and system security
    recipient of Hogeschool van Amsterdam Internationaal Certificaat
    Internship development work Kenya

Werkervaring

  • 2015-heden

    Security Consultant

    Nedap healthcare

    As security consultant at Nedap HealthCare I provide security related services to all Nedap HealthCare products. This includes:

    * Penetration testing of all Nedap HealtCare applications and websites
    * Penetration testing of all Mobile HealtCare applications, IOS & Android
    * Source code review of Nedap applications
    * Network security tests
    * Development of secure modules within Nedap HealtCare applications

  • 2014-heden

    Secretary

    Studenten Net Twente

    Studenten Net Twente is an association that represents students on the IT facilities of the University of Twente. This includes helping students with IT related problems, providing extra IT related services and consulting with the ICT department of the University on behalf of the students.

  • 2014-heden

    Directeur

    Xsec Public Security

    As Xsec I try to provide IT related services to a wide range of customers. The services provided range from security related assessment to IT consultancy. In addition, I provide Pro Bono services to startups, no profit organizations and open source projects.

  • 2012-2014

    Senior Security Engineer

    IT Security Services

    * Penetration testing of application and network services as an ethical hacker
    * Development and code review of different systems and platforms, including development of new protocols and cryptographic functions.
    * Creating and presenting course materials for customers and universities.
    * Focus on IT security and secure development.
    * Guest speaker at the Haagse hogeschool, Hogeschool van Amsterdam en Inholland.
    * Internal application development with focus on security

    * OS
    - Linux, Unix, Windows, OS X & Citrix

    * Programming languages skills
    - C / C++ / Java

    * Scripting skills
    - Bash / Python

    * Web application skills
    - Spring / Java EE / HTML / JavaScript / AJAX / JQuery / PHP / ASP.net / Spring / Hibernate / Struts

    * Databases
    - MySQL, SqlLite, MsSQL,PostgreSQL

    * Ethical hacking
    - Web applications / networks / systems / mobile devices (Android / iOS) / code review

    * Security scanning experience
    - Nessus, openVAS, Metasploit, BurpSuite,nmap, netcat, BackTrack/Kali suite.

    * Exploiting
    - gdb,IDA pro, Ollydbg

    * Network services and hardening
    - Apache, Tomcat, IIS, Nginx, MySQL, Oracle, Active Directory

  • 2011-2012

    Provisioning Engineer

    LeaseWeb B.V.

    * Installing & configuring new custom systems.
    * Working with multiple platforms including, Windows server 2008/2003, CentOS, Ubuntu, Debian, FreeBSD.
    * Experience configuring RAID, filesystems, ACL, network setup
    * Maintaining good customer relation while configuring the systems to the customers preferences
    * Installing & configuring new network systems, including firewall, switches.

Vaardigheden

Contact

Send me a message
Adres Witbreuksweg 401 - 404
7522 ZA Enschede
Telefoon 06 - 126 77 218